Lexus ES: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MAIN RELAY (EFI-MAIN NO. 1)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 3 - 5 | Battery voltage not applied between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (EFI-MAIN NO. 1). | |
2. INSPECT MAIN RELAY (EFI-MAIN NO. 2)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 3 - 5 | Battery voltage not applied between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (EFI-MAIN NO. 2). | |
3. INSPECT MAIN RELAY (A/F HTR)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 3 - 5 | Battery voltage not applied between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (A/F HTR). | |
4. INSPECT ELECTRONIC DRIVER UNIT RELAY (D INJ)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 3 - 5 | Battery voltage not applied between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the electronic driver unit relay (D INJ). | |
5. INSPECT NO. 2 IGNITION RELAY (IG2 NO. 1)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 3 - 5 | Battery voltage not applied between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the No. 2 ignition relay (IG2 NO. 1). | |
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PRECAUTION INITIALIZATION NOTICE:
Before replacing the ECM, refer to Registration.
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Perform Registration (VIN registration) after replacing the ECM.
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Perform Learning
DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of di
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DESCRIPTION Refer to DTC P012011. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P022011 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground The output voltage of VTA2 is less than 2.05 V for 2 seconds or more (1 trip det
UTILITY DESCRIPTION (a) Refer to the table below and then perform the necessary operation according to the part to be replaced in order to perform calibration. Parts to be Replaced / Operation Necessary Operation Skid control ECU (brake actuator assembly) Perform acceleration sensor zero
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